(;
GM[1]FF[4]VW[]AP[Many Faces of Go:10.0]
SZ[19]
HA[0]
ST[1]
PB[Yamabe, 9p]
PW[Ohira, 9p]
KM[4.5]
RE[W+Resign]
SO[BGJ 1, Summer 1967, Page 13c]
BR[9 dan pro]
WR[9 dan pro]
C[Black: Yamabe, 9p
White: Ohira, 9p
Komi: 4.5
Timelimit: 9 hours
Result: W+Resign
Source: BGJ 1, Summer 1967, Page 13c
Copyright British Go Association 1967, 1999
];B[qd];W[dc];B[pq];W[dq];B[oc];W[qo];B[pm]
C[Black 7: A very popular move these days, settling this area quickly.
];W[on]
C[White 8 - 14: All these plays are standard.
]
;B[mq];W[ce];B[co];W[dl];B[fo];W[gq]
C[White 8 - 14: All these plays are standard.
]LB[gq:14][fo:13][dl:12][co:11][ce:10][mq:9][on:8]
;B[id]
C[Black 15: Aiming to take a large position by playing A next.
]LB[pi:A]
;W[ph]
(;B[ee]
C[Black 17: If 17' was played at B, white 17 would utilise 12 to
the maximum in building up territory.
]LB[fc:B]
;W[ed];B[de]
C[Black 19 - 22: Standard sequence for this corner position.
];W[cf];B[fe];W[dd]
C[Black 19 - 22: Standard sequence for this corner position.
]LB[dd:22][fe:21][cf:20][de:19]
;B[eh]
C[Black 23: Attacking 12, ...
]LB[dl:12]
;W[fm]
C[... so white retaliates with a strong counter attack on 11 &
13.
]LB[fo:13][co:11]
;B[cq]
C[Black 25: The normal practice, strengthening his stones and reducing
the corner.
]
;W[cr];B[dp]
(;W[eq]
C[White 28: If White plays 28' at A, Black plays as variation and
isolates white /\\ on the south side.
]LB[bq:A]
;B[ho];W[hm];B[pf]
C[Black 31 protects the corner and attacks 16 strongly.
]LB[ph:16]
;W[pk];B[om];W[nm]
C[White 34: The usual reply to 33 is 38(A), but in this case there
is a white stone at 32 and white can afford to attack the black
stones more strongly.
]LB[pk:32][nn:A]
;B[pn];W[po]
;B[nl];W[nn];B[ok];W[ql];B[pj]
C[Black 41: This is better than 42(A), which forces white along
the fourth line and lets white gain an easy life, even though
the cut at 42(A) can be taken.
]LB[oj:A]
;W[oj];B[qj];W[qk];B[rj];W[nj]
;B[ml];W[qm]
C[White 48 ensures a connection to the lower white group, and takes
away the base of the black stones forcing them to run into the
centre. It also forces 49(A).
]LB[qh:A]
;B[qh];W[lj];B[kl];W[ol]
C[White 52 reduces the liberties of the black group by one with
sente.
];B[pl];W[qn];B[ol];W[lm]
;B[ll];W[jj];B[il];W[hj];B[im]
C[Black 61: If Black plays elsewhere, white can cut here and separate
all the black armies.
]
(;W[gh]
C[White 62 threatens to cut at A. For then: the variation isolates
the central black men.
]LB[he:A]
;B[gk]
C[Black 63: Black again counter attacks instead of protecting the
cutting point directly.
];W[gj];B[ek];W[hk]
C[White 66 - 86: White continues to isolate the central black men
and to profit by attacking their possible connections, but gives
up two stones in the process.
];B[el];W[em];B[dm];W[dn]
;B[cm];W[cn];B[bn];W[bm];B[cl];W[eo];B[bp];W[an];B[bo];W[dk]
;B[ej];W[bl];B[ck];W[dj];B[bk];W[di]
C[White 66 - 86: White continues to isolate the central black men
and to profit by attacking their possible connections, but gives
up two stones in the process.
]LB[di:86][bk:85][dj:84][ck:83][bl:82][ej:81][dk:80][bo:79][an:78][bp:77][eo:76][cl:75][bm:74][bn:73][cn:72][cm:71][dn:70][dm:69][em:68][el:67][hk:66]
;B[fn]
C[Black 87 - 94: Black connects his two weak groups and is forced
to make eyes by 94.
];W[en];B[gl];W[hl]
;B[gm];W[ep];B[hn];W[ip]
C[Black 87 - 94: Black connects his two weak groups and is forced
to make eyes by 94.
]LB[ip:94][hn:93][ep:92][gm:91][hl:90][gl:89][en:88][fn:87]
;B[ln];W[lo];B[kn];W[np];B[nq];W[bj]
C[White 100 forces 101(A) and threatens to cut at B after he has
prevented a possible black play at C, connecting to the lower
black group (99).
]LB[nq:99][ko:C][ei:B][al:A]
;B[al];W[lp];B[ei];W[if]
C[White 104 safeguards his central group which has been without
proper eyes all this time as black has never had an opportunity
to attack them! It also threatens disconnection at A (see 62).
]LB[he:A]
;B[fd];W[jd];B[ic];W[lq]
C[White 108 secures some territory and forces 109(A), otherwise
black will lose these men.
]LB[rq:A]
;B[rq];W[lf]
;B[nh];W[mh];B[mg]
(;W[ng]
C[White 114: White 1 in variation would lose three stones as shown.
];B[mf];W[nf];B[lh];W[mi];B[lg];W[qg]
C[White 120 gains 126(A) with sente.
]LB[oh:A]
;B[ki];W[kj]
;B[pg];W[me];B[kf];W[oh];B[qf]
(;W[je]
C[White 128: If white 128' at 1 in Dia 4, then black captures all
the white stones .
];B[kd]
C[Black 129' at 130(A) would lose all the black stones.
]LB[ke:A]
;W[ke];B[le];W[ld];B[md]
C[Black 133 gains the ko but he hasn't enough ko threats to win
it.
];W[lf];B[cd];W[cc]
;B[le];W[df]
C[White 138 threatens to disconnect the black men again.
];B[jp];W[jq];B[hp];W[io];B[in];W[hq];B[jo];W[iq]
;B[ch];W[lf];B[cg]
C[Black 149 captures the five white stones but the ko is larger.
];W[le];B[fb];W[nb]
C[White 152 destroys all the black territory in this sector.
];B[mc];W[ob];B[pc];W[mb]
;B[hg];W[ig];B[hh];W[ih];B[eb];W[qb];B[pb]
(;W[pa]
C[White 164: After this black cannot kill the white men for the
variation lives
];B[ba];W[da]
(;B[bd]
C[Black 167 attempts to kill the corner. If Black plays 167' at
1 in variation white lives easily.
];W[cb];B[db];W[be];B[ca]
(;W[bb]
C[White 172: After this the corner lives.
The variation is the best black can do.
===
As Black is about 10 points down and has little time left he
resigns.
])
(;W[bb]
(;B[bh]
C[See sub variation to make move numbers match web page.
])
(;B[bh];W[ah];B[ai];W[ag];B[ae];W[bf];B[ac];W[bc];B[ab]
;W[ad];B[bd];W[bg];B[ea];W[cd];B[ad];W[af];B[da];W[aa];B[ad]
(;W[eg]
C[After this, white either connects with A or kills three men with
B-F.
]LB[aj:F][am:E][cj:D][bi:C][dh:B][fg:A]
)
(;W[eg];B[dh];W[fg])
(;W[eg];B[fg];W[dh];B[bi];W[cj];B[am];W[aj]))))
(;B[db];W[cb];B[ca];W[bg];B[bh];W[ab]LB[ab:6][bh:5][bg:4][ca:3][cb:2][db:1]
))
(;W[pa]
(;B[lc]
C[See sub variation to make move numbers match web page.
])
(;B[lc];W[lb];B[kc];W[rd])))
(;W[le];B[je];W[ie];B[kd];W[ke];B[jf];W[jc];B[jb];W[kc]
;B[lc];W[kb];B[lb];W[ld];B[ka];W[kd];B[ne]))
(;W[lg];B[mi];W[lh];B[mj]))
(;W[gh];B[tt]
C[(Not on diagram)
]
(;W[he]
C[See sub variation to get move numbers from 1, the same as the
web page.
])
(;W[he];B[hd];W[gd];B[fd];W[ge])))
(;W[bq];B[eq];W[cp];B[dr];W[cq];B[eo]))
(;B[fc];W[ee]))